CN111229807A - Soil remediation method - Google Patents
Soil remediation method Download PDFInfo
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- CN111229807A CN111229807A CN201910996377.XA CN201910996377A CN111229807A CN 111229807 A CN111229807 A CN 111229807A CN 201910996377 A CN201910996377 A CN 201910996377A CN 111229807 A CN111229807 A CN 111229807A
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- soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mycology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a soil remediation method, which relates to the field of agriculture and specifically comprises the following steps: the method comprises the following steps: evaluating soil; step two: collecting soil; step three: crushing and filtering the collected soil; step four: adjusting the pH of the soil, namely adding a soil repairing agent into the screened soil and mixing the soil repairing agent with a pH adjusting agent; step five: filling the treated soil back into the original block and leveling; step six: spraying a solution with the microorganism content of 6% -8% on the soil surface after the soil is filled, periodically humidifying and culturing, and simultaneously planting earthworm biological groups into the soil; step seven: selecting hyper-enriched plants, cross-planting, and replacing periodically. The invention simultaneously adopts three modes of physical remediation, chemical remediation and biological remediation to remediate the soil, thereby achieving the function of comprehensively remediating the soil and improving the remediation effect of the soil.
Description
Technical Field
The invention relates to the field of agriculture, in particular to a soil remediation method.
Background
Although the soil has a certain purification capacity, soil pollution is caused when the pesticide amount entering the soil exceeds the environmental capacity of the soil, the soil ecological system is seriously affected, and meanwhile, the pesticide can enter a human body through a food chain, so that the health of the human body is harmed. In summary, the harm of pesticide contamination of soil can be summarized in the following aspects.
The effects on agricultural crops: residual pesticide in the soil can be gradually transferred to the plants through the root system activities of the plants, so that the pesticide residue in the plants is increased, the quality of agricultural products is influenced, and the economic benefit of farmers is reduced.
Effects on soil organisms: many pesticides poison soil organisms such as earthworms. Earthworms are an important soil-benefiting organism. Can keep soil in loose state and improve fertility in soil, but part of highly toxic pesticide can kill earthworms.
Effect on soil microorganisms: different pesticides also have different effects on microorganisms in the soil. The effect of the same pesticide on different microbial populations also varies, but in general pesticides can affect the population and population number of soil microbes. Fungicides have a greater impact on soil microorganisms, whether beneficial or harmful, and are killed or inhibited from growing, such as nitrifying and ammonifying bacteria. In addition, pesticide residues in the soil also have certain influence on the number of microorganisms in the soil, so that the soil ecosystem is dysfunctional, unbalanced, disordered or deficient in nutrient components, and is unfavorable for the growth and metabolism of organisms in the soil.
Effects on human and animal health: the pesticide residue in the soil can be absorbed by grain and vegetable crops, so that the grain and vegetable crops are polluted and the health of people and livestock is harmed through a food chain. In addition, drinking water on the surface of the soil can enter human bodies or animals, so that the human health is directly or indirectly harmed, and the normal life of people is influenced.
Other effects: residual pesticides in soil also change the physical properties of the soil. Uneven nutrients ultimately lead to reduced yield and quality of the crop. The soil is affected by pesticides for a long time, and the soil is finally obviously acidified. In addition, the soil is contaminated with heavy metals, causing irreparable losses. When the residual pesticide in the soil affects the local biological chain by affecting the number of certain organisms, the environment is seriously affected. For example, pesticides pass through the rice ears to greatly reduce the number of birds, so that the number of the field rats is increased sharply, local vegetation species are further influenced, and the environment is damaged. Besides, the pollution of rural production and living environment is caused by the random discharge of the waste (sewage).
Disclosure of Invention
The present invention is directed to a soil remediation method to solve the problems set forth above in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a soil remediation method comprising the steps of:
the method comprises the following steps: soil assessment, namely performing condition assessment on soil to be repaired;
step two: collecting soil, namely collecting soil with the depth of 40-60cm from the soil in an area to be repaired;
step three: crushing and filtering the collected soil, screening out blocky impurities, garbage and the like in the soil, and adopting a soil crusher and a screening machine when crushing and filtering the soil;
step four: adjusting the pH of the soil, namely adding a soil repairing agent into the screened soil and mixing the soil repairing agent with a pH adjusting agent;
step five: filling the treated soil back into the original block and leveling;
step six: spraying a solution with the microorganism content of 6% -8% on the soil surface after the soil is filled, periodically humidifying and culturing, and simultaneously planting earthworm biological groups into the soil;
step seven: selecting hyper-enrichment plants, planting the hyper-enrichment plants in a crossed manner, and replacing the hyper-enrichment plants at regular intervals, wherein the heavy metal content in the soil is checked every three months, and the hyper-enrichment plants are selected and replaced according to the components.
As a further scheme of the invention: the contents of soil evaluation include confirmation of the particle size of soil-block impurities, the pH of the soil, and the contents of various heavy metals in the soil.
As a further scheme of the invention: the soil crusher adopts an SD-50 soil crusher produced by Yuxia machinery factory in Ningyao county, and the screening machine adopts a type 50 soil screening machine produced by Yangxi machinery manufacturing factory in Longyao county.
As a further scheme of the invention: the soil remediation agent is an organic fertilizer, and the ratio of the organic fertilizer to the soil is 5: 1.
As a further scheme of the invention: the pH regulator is plant ash.
As a further scheme of the invention: microorganisms include, but are not limited to, Bacillus and Escherichia coli.
Compared with the prior art, the invention has the beneficial effects that: the soil remediation method solves the problems of soil hardening, inactivation, massive impurity pollution and the like through ectopic treatment on the soil, and gradually recovers the diversity of the biological community; heavy metals in the soil are treated, so that the pollution of the heavy metals in the soil is reduced; meanwhile, the soil is repaired by adopting three modes of physical repair, chemical repair and biological repair, so that the function of comprehensively repairing the soil is achieved, and the soil repairing effect is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, the soil remediation method comprises the following steps:
the method comprises the following steps: soil assessment, namely performing condition assessment on soil to be repaired, wherein the assessment content comprises the confirmation of the particle size of massive impurities in the soil, the pH value of the soil and the content of various heavy metals in the soil;
step two: collecting soil, namely collecting soil with the depth of 40-60cm from the soil in an area to be repaired;
step three: crushing and filtering the collected soil, screening out blocky impurities, garbage and the like in the soil, and adopting a soil crusher and a screening machine when crushing and filtering the soil, wherein the soil crusher adopts an SD-50 soil crusher produced by Xia mechanical factory in Yuanxia county, and the screening machine adopts a type 50 soil screening machine produced by Xirong mechanical manufacturing factory in Longyao county;
step four: adjusting the pH of the soil, namely adding a soil repairing agent into the screened soil and mixing the soil repairing agent with the pH adjusting agent, wherein the soil repairing agent is an organic fertilizer, the ratio of the organic fertilizer to the soil is 5:1, and the pH adjusting agent is plant ash;
step five: filling the treated soil back into the original block and leveling;
step six: spraying a solution with the microorganism content of 6% -8% on the soil surface after filling, periodically humidifying and culturing, wherein the microorganism comprises but is not limited to bacillus and escherichia coli, and simultaneously planting earthworm swarms in the soil;
step seven: selecting hyper-enrichment plants, planting the hyper-enrichment plants in a crossed manner, and replacing the hyper-enrichment plants at regular intervals, wherein the heavy metal content in the soil is checked every three months, and the hyper-enrichment plants are selected and replaced according to the components.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.
Claims (6)
1. A soil remediation method, comprising the steps of:
the method comprises the following steps: soil assessment, namely performing condition assessment on soil to be repaired;
step two: collecting soil, namely collecting soil with the depth of 40-60cm from the soil in an area to be repaired;
step three: crushing and filtering the collected soil, screening out blocky impurities, garbage and the like in the soil, and adopting a soil crusher and a screening machine when crushing and filtering the soil;
step four: adjusting the pH of the soil, namely adding a soil repairing agent into the screened soil and mixing the soil repairing agent with a pH adjusting agent;
step five: filling the treated soil back into the original block and leveling;
step six: spraying a solution with the microorganism content of 6% -8% on the soil surface after the soil is filled, periodically humidifying and culturing, and simultaneously planting earthworm biological groups into the soil;
step seven: selecting hyper-enrichment plants, planting the hyper-enrichment plants in a crossed manner, and replacing the hyper-enrichment plants at regular intervals, wherein the heavy metal content in the soil is checked every three months, and the hyper-enrichment plants are selected and replaced according to the components.
2. The method of claim 1, wherein the soil evaluation comprises identifying the particle size of the soil bulk impurities, the pH of the soil, and the content of the heavy metals in the soil.
3. The soil remediation method of claim 1, wherein the soil pulverizer is an SD-50 soil pulverizer produced by Yuxia machinery factory in Ningyao county, and the screening machine is a type 50 soil screening machine produced by Yangxi machinery manufacturing factory in Longyao county.
4. The method of claim 1, wherein the soil remediation agent is an organic fertilizer and the ratio of organic fertilizer to soil is 5: 1.
5. A method of soil remediation according to claim 1 wherein the PH modifier is plant ash.
6. A method of soil remediation according to claim 1 wherein the microorganisms include but are not limited to bacillus and escherichia coli.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996377.XA CN111229807A (en) | 2019-10-18 | 2019-10-18 | Soil remediation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996377.XA CN111229807A (en) | 2019-10-18 | 2019-10-18 | Soil remediation method |
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| Publication Number | Publication Date |
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| CN111229807A true CN111229807A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910996377.XA Pending CN111229807A (en) | 2019-10-18 | 2019-10-18 | Soil remediation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369296A (en) * | 2021-06-15 | 2021-09-10 | 广州市金龙峰环保设备工程股份有限公司 | Method for improving farmland polluted soil with slight heavy metal pollution |
| CN115486225A (en) * | 2022-09-06 | 2022-12-20 | 河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心) | Method for improving slag soil in situ and crusher applying same |
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| CN104941993A (en) * | 2015-07-22 | 2015-09-30 | 句容市雾起山家庭农场 | Comprehensive remediation method for seriously polluted land |
| CN105268730A (en) * | 2014-05-30 | 2016-01-27 | 上海市环境科学研究院 | Method for restoring heavy metal polluted soil by using earthworm |
| CN106583438A (en) * | 2017-01-25 | 2017-04-26 | 江苏三联安全评价咨询有限公司 | Remediation system and method for poisonous and harmful soil |
| CN107303585A (en) * | 2016-04-24 | 2017-10-31 | 雷学军 | The method of three-dimensional pattern repairing heavy metal in soil pollution |
| CN107774704A (en) * | 2017-10-09 | 2018-03-09 | 辽宁大学 | A kind of method of heavy metal copper in plant animal microbial association rehabilitating soil |
-
2019
- 2019-10-18 CN CN201910996377.XA patent/CN111229807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268730A (en) * | 2014-05-30 | 2016-01-27 | 上海市环境科学研究院 | Method for restoring heavy metal polluted soil by using earthworm |
| CN104941993A (en) * | 2015-07-22 | 2015-09-30 | 句容市雾起山家庭农场 | Comprehensive remediation method for seriously polluted land |
| CN107303585A (en) * | 2016-04-24 | 2017-10-31 | 雷学军 | The method of three-dimensional pattern repairing heavy metal in soil pollution |
| CN106583438A (en) * | 2017-01-25 | 2017-04-26 | 江苏三联安全评价咨询有限公司 | Remediation system and method for poisonous and harmful soil |
| CN107774704A (en) * | 2017-10-09 | 2018-03-09 | 辽宁大学 | A kind of method of heavy metal copper in plant animal microbial association rehabilitating soil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369296A (en) * | 2021-06-15 | 2021-09-10 | 广州市金龙峰环保设备工程股份有限公司 | Method for improving farmland polluted soil with slight heavy metal pollution |
| CN115486225A (en) * | 2022-09-06 | 2022-12-20 | 河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心) | Method for improving slag soil in situ and crusher applying same |
| CN115486225B (en) * | 2022-09-06 | 2023-08-04 | 河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心) | Method for in-situ improvement of crushed slag soil and crusher applying method |
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Application publication date: 20200605 |
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